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debugdeltachain: stop summing the same chain over and over...
debugdeltachain: stop summing the same chain over and over Before this patch, delta chain size was computed from scratch for each chain, disregarding the fact very likely already computed the same of length-1 prefix for another revisions. We not cache delta chain size and shortcut the computation when we see them. Just for my mercurial-devel clone, this move the computation from about 17.5 second to about 4.8 seconds.

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r49801:642e31cb default
r51243:af776c3d stable
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lsprof.py
137 lines | 4.0 KiB | text/x-python | PythonLexer
Gregory Szorc
lsprof: support PyPy (issue4573)...
r27061 import _lsprof
Vadim Gelfer
add --lsprof option. 3x faster than --profile, more useful output....
r2422 import sys
Gregory Szorc
lsprof: support PyPy (issue4573)...
r27061
Gregory Szorc
py3: manually import getattr where it is needed...
r43359 from .pycompat import getattr
Gregory Szorc
lsprof: support PyPy (issue4573)...
r27061 Profiler = _lsprof.Profiler
# PyPy doesn't expose profiler_entry from the module.
profiler_entry = getattr(_lsprof, 'profiler_entry', None)
Vadim Gelfer
add --lsprof option. 3x faster than --profile, more useful output....
r2422
Augie Fackler
formatting: byteify all mercurial/ and hgext/ string literals...
r43347 __all__ = [b'profile', b'Stats']
Vadim Gelfer
add --lsprof option. 3x faster than --profile, more useful output....
r2422
Augie Fackler
formatting: blacken the codebase...
r43346
Vadim Gelfer
add --lsprof option. 3x faster than --profile, more useful output....
r2422 def profile(f, *args, **kwds):
"""XXX docstring"""
p = Profiler()
Dirkjan Ochtman
updating lsprof.py from remote repository
r5992 p.enable(subcalls=True, builtins=True)
Vadim Gelfer
add --lsprof option. 3x faster than --profile, more useful output....
r2422 try:
Dirkjan Ochtman
updating lsprof.py from remote repository
r5992 f(*args, **kwds)
Vadim Gelfer
add --lsprof option. 3x faster than --profile, more useful output....
r2422 finally:
p.disable()
Dirkjan Ochtman
updating lsprof.py from remote repository
r5992 return Stats(p.getstats())
Vadim Gelfer
add --lsprof option. 3x faster than --profile, more useful output....
r2422
Gregory Szorc
py3: use class X: instead of class X(object):...
r49801 class Stats:
Vadim Gelfer
add --lsprof option. 3x faster than --profile, more useful output....
r2422 """XXX docstring"""
def __init__(self, data):
self.data = data
Augie Fackler
cleanup: remove pointless r-prefixes on double-quoted strings...
r43809 def sort(self, crit="inlinetime"):
Vadim Gelfer
add --lsprof option. 3x faster than --profile, more useful output....
r2422 """XXX docstring"""
Gregory Szorc
lsprof: support PyPy (issue4573)...
r27061 # profiler_entries isn't defined when running under PyPy.
if profiler_entry:
if crit not in profiler_entry.__dict__:
Augie Fackler
formatting: byteify all mercurial/ and hgext/ string literals...
r43347 raise ValueError(b"Can't sort by %s" % crit)
Gregory Szorc
lsprof: support PyPy (issue4573)...
r27061 elif self.data and not getattr(self.data[0], crit, None):
Augie Fackler
formatting: byteify all mercurial/ and hgext/ string literals...
r43347 raise ValueError(b"Can't sort by %s" % crit)
Gregory Szorc
lsprof: support PyPy (issue4573)...
r27061
Alejandro Santos
compat: use 'key' argument instead of 'cmp' when sorting a list
r9032 self.data.sort(key=lambda x: getattr(x, crit), reverse=True)
Vadim Gelfer
add --lsprof option. 3x faster than --profile, more useful output....
r2422 for e in self.data:
if e.calls:
Alejandro Santos
compat: use 'key' argument instead of 'cmp' when sorting a list
r9032 e.calls.sort(key=lambda x: getattr(x, crit), reverse=True)
Vadim Gelfer
add --lsprof option. 3x faster than --profile, more useful output....
r2422
def pprint(self, top=None, file=None, limit=None, climit=None):
"""XXX docstring"""
if file is None:
file = sys.stdout
d = self.data
if top is not None:
d = d[:top]
Augie Fackler
formatting: byteify all mercurial/ and hgext/ string literals...
r43347 cols = b"% 12d %12d %11.4f %11.4f %s\n"
hcols = b"% 12s %12s %12s %12s %s\n"
Augie Fackler
formatting: blacken the codebase...
r43346 file.write(
hcols
% (
Augie Fackler
formatting: byteify all mercurial/ and hgext/ string literals...
r43347 b"CallCount",
b"Recursive",
b"Total(s)",
b"Inline(s)",
b"module:lineno(function)",
Augie Fackler
formatting: blacken the codebase...
r43346 )
)
Vadim Gelfer
add --lsprof option. 3x faster than --profile, more useful output....
r2422 count = 0
for e in d:
Augie Fackler
formatting: blacken the codebase...
r43346 file.write(
cols
% (
e.callcount,
e.reccallcount,
e.totaltime,
e.inlinetime,
label(e.code),
)
)
Vadim Gelfer
add --lsprof option. 3x faster than --profile, more useful output....
r2422 count += 1
if limit is not None and count == limit:
return
ccount = 0
Matt Mackall
profile: add undocumented config options for profiler output
r16263 if climit and e.calls:
Vadim Gelfer
add --lsprof option. 3x faster than --profile, more useful output....
r2422 for se in e.calls:
Augie Fackler
formatting: blacken the codebase...
r43346 file.write(
cols
% (
se.callcount,
se.reccallcount,
se.totaltime,
se.inlinetime,
Augie Fackler
formatting: byteify all mercurial/ and hgext/ string literals...
r43347 b" %s" % label(se.code),
Augie Fackler
formatting: blacken the codebase...
r43346 )
)
Vadim Gelfer
add --lsprof option. 3x faster than --profile, more useful output....
r2422 count += 1
ccount += 1
if limit is not None and count == limit:
return
if climit is not None and ccount == climit:
break
def freeze(self):
"""Replace all references to code objects with string
descriptions; this makes it possible to pickle the instance."""
# this code is probably rather ickier than it needs to be!
for i in range(len(self.data)):
e = self.data[i]
if not isinstance(e.code, str):
self.data[i] = type(e)((label(e.code),) + e[1:])
Dirkjan Ochtman
updating lsprof.py from remote repository
r5992 if e.calls:
for j in range(len(e.calls)):
se = e.calls[j]
if not isinstance(se.code, str):
e.calls[j] = type(se)((label(se.code),) + se[1:])
Vadim Gelfer
add --lsprof option. 3x faster than --profile, more useful output....
r2422
Augie Fackler
formatting: blacken the codebase...
r43346
Vadim Gelfer
add --lsprof option. 3x faster than --profile, more useful output....
r2422 _fn2mod = {}
Augie Fackler
formatting: blacken the codebase...
r43346
Vadim Gelfer
add --lsprof option. 3x faster than --profile, more useful output....
r2422 def label(code):
if isinstance(code, str):
Gregory Szorc
lsprof: remove some Python 2.7 compatibility code...
r49792 return code.encode('latin-1')
Vadim Gelfer
add --lsprof option. 3x faster than --profile, more useful output....
r2422 try:
mname = _fn2mod[code.co_filename]
except KeyError:
Gregory Szorc
global: bulk replace simple pycompat.iteritems(x) with x.items()...
r49768 for k, v in list(sys.modules.items()):
Vadim Gelfer
add --lsprof option. 3x faster than --profile, more useful output....
r2422 if v is None:
continue
Augie Fackler
lsprof: use getattr instead of hasattr
r14959 if not isinstance(getattr(v, '__file__', None), str):
Vadim Gelfer
add --lsprof option. 3x faster than --profile, more useful output....
r2422 continue
if v.__file__.startswith(code.co_filename):
mname = _fn2mod[code.co_filename] = k
break
else:
Augie Fackler
cleanup: remove pointless r-prefixes on single-quoted strings...
r43906 mname = _fn2mod[code.co_filename] = '<%s>' % code.co_filename
Gregory Szorc
py3: encode str to bytes...
r40238
Augie Fackler
cleanup: remove pointless r-prefixes on single-quoted strings...
r43906 res = '%s:%d(%s)' % (mname, code.co_firstlineno, code.co_name)
Vadim Gelfer
add --lsprof option. 3x faster than --profile, more useful output....
r2422
Gregory Szorc
lsprof: remove some Python 2.7 compatibility code...
r49792 return res.encode('latin-1')